There are still many inconsistencies between the results
obtained regarding the morphology of active galaxies
[1]}, [2]}, [3]}, [4]}, [5]}, [6]}, [7]}, [8]}, [9]}, and
how AGN may affect the morphological classification of their host galaxies
[5]}, [11]}, [12]}. Many previous
studies found that AGN host galaxies usually reside in spheroids or
bulge-dominated galaxies [1]}, [2]}, [12]}, [6]}, [7]}, [18]}, although some studies
find a higher concentration of later-types [4]}, [5]}, [8]}. It has been also shown that morphological
properties of AGN host galaxies depend on the type of detection, where
most radio detected AGN are hosted by red sequence galaxies
[22]}, X-ray detected AGN hosts occupy all areas of
the colour-magnitude diagram, but mostly green valley
[23]}, [3]}, [22]}, [6]}, [7]}, while many of the infrared detected AGN hosts reside in slightly
bluer galaxies and occupy mainly the blue cloud region with a
significant fraction of peculiar galaxies, with clear signs of
interactions and mergers [22]}, [29]}, [8]}. Although several works commented how the AGN contribution
may affect the morphological classification of their host galaxies,
finding insignificant contributions in most cases
[5]}, [11]}, [12]}, [34]}, [35]}, we are still lacking detailed analysis of how different
morphological parameters, commonly used in galaxy classification, are affected by the AGN contribution and therefore how the final
classification of galaxies will be affected.
